.flexc {
    display: flex;
    justify-content: center;
    align-items: center;
  }
.flexb{
    display: flex;
    justify-content: space-between;
}
.flexe{
    display: flex;
    justify-content: space-evenly;
}
.flexa{
    display: flex;
    justify-content: space-around;
}
.pb2{
    padding-bottom: 20px;
}